📍 Plot Drainage Design – Surface Water Drainage Solutions for New Builds
Effective plot drainage design is crucial to ensure foul and surface water is diverted away from the property in the shortest run with least number of inspection chambers. At Paddick Engineering, we specialize in designing cost-effective and regulation-compliant plot drainage systems that meet Building Regulations Part H.
Whether you are:
- ✅ Developing a single plot or self-build property.
- ✅ Extending or modifying an existing drainage system.
- ✅ Building on sloping or challenging land.
- ✅ Managing surface water runoff from hardstanding areas (driveways, patios, etc.).
Our plot drainage design services ensure surface water is safely collected, managed, and discharged — avoiding future drainage issues and ensuring fast local authority approval.
💧 What Is Plot Drainage Design?
Plot drainage design involves creating a technical drainage layout and calculation to manage the route to an outfall for the surface water and foul water for each property.
The drainage design must consider:
- 💧 Roof water discharge (guttering and downpipes).
- 💧 Hardstanding runoff (driveways, patios, pathways).
- 💧 Foul routes that have minimal inspection chambers
- 💧 Connection to main drainage or soakaway systems.
Our designs aim to:
- ✅ Create a cost affective foul and surface water route to an outfall.
- ✅ Ensure your plot meets Building Regulations Part H.
📊 Do I Need a Plot Drainage Design?
You will need a plot drainage design if:
- ✅ You are building a new residential plot (single dwelling or self-build).
- ✅ You are extending or modifying an existing property.
- ✅ You have hardstanding areas such as driveways, patios, or access roads.
We design all plot drainage systems to gain fast approval from Building Control and prevent future surface water issues.
💧 Our Plot Drainage Design Services
At Paddick Engineering, we offer a complete plot drainage design service, including:
✅ 1. Drainage Calculations & Design Layouts
We provide detailed drainage layouts showing:
- 📜 Surface water and foul drainage routes.
- 📜 Roof and guttering connections.
- 📜 Soakaway locations (if applicable).
- 📜 Connection to mains sewer or other discharge points.
Our calculations comply with:
- Building Regulations Part H.
- Local authority drainage requirements.
✅ 2. Drainage Connection to Main Sewers
We design connections to existing drainage infrastructure, including:
- 📜 Foul water drainage systems.
- 📜 Surface water drains.
- 📜 Combined drainage networks.
We ensure the connection complies with:
- ✅ Building Regulations Part H.
- ✅ Water Authority Adoption Standards (S104).
💡 Why Is Plot Drainage Design Important?
Without a professionally designed plot drainage system, you risk:
- 🚨 Surface water flooding during heavy rainfall.
- 🚨 Water pooling in gardens, driveways, or low-lying areas.
- 🚨 Damp or structural damage to your property.
- 🚨 Delays in obtaining planning or building control approval.
Our plot drainage designs solve these issues, ensuring:
- ✅ Effective drainage of roof and surface water.
- ✅ Compliance with local planning conditions.
- ✅ Sustainable surface water management.
- ✅ Fast approval from Building Control.
📐 Plot Drainage Design Calculations
We provide full drainage calculations to ensure your system can handle heavy rainfall without flooding. This includes:
- ✅ Drainage flow rate calculations.
- ✅ Soakaway sizing (BRE365).
- ✅ Pipe size and gradient calculations.
- ✅ Attenuation volume calculations (if required).
Our designs meet all SuDS (Sustainable Drainage Systems) standards, ensuring sustainable surface water management.
📜 Do I Need Planning Permission for Plot Drainage?
In most cases, drainage design forms part of your Building Control application. However, if your plot is part of a larger development or within a flood risk area, you may require:
- ✅ Drainage Strategy Report.
- ✅ Flood Risk Assessment (FRA).
- ✅ Soakaway Test Reports (BRE365).
We can provide all required documentation to secure fast planning approval.
📄 Why Choose Paddick Engineering for Plot Drainage Design?
| Service | Benefit |
|---|---|
| ✅ Full Drainage Design | Complete layout & calculation for new plots. |
| ✅ SuDS Compliant Design | Sustainable solutions for surface water runoff. |
| ✅ Building Regulation Approval | Designs fully compliant with Part H of Building Regs. |
| ✅ Fast Turnaround | Quick design delivery for planning approvals. |
📞 Get Expert Plot Drainage Design Today
If you’re planning a new build, extension, or single plot development, our plot drainage design services will:
- ✅ Prevent surface water flooding.
- ✅ Ensure compliance with Building Regulations.
- ✅ Gain fast local authority approval.
👉 Contact us today for a FREE consultation and quote.